EP2018495B1 - Lubricating device with lubricating pinion - Google Patents
Lubricating device with lubricating pinion Download PDFInfo
- Publication number
- EP2018495B1 EP2018495B1 EP07724596A EP07724596A EP2018495B1 EP 2018495 B1 EP2018495 B1 EP 2018495B1 EP 07724596 A EP07724596 A EP 07724596A EP 07724596 A EP07724596 A EP 07724596A EP 2018495 B1 EP2018495 B1 EP 2018495B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricating pinion
- lubricating
- lubricant
- tooth
- pinion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 78
- 239000000314 lubricant Substances 0.000 claims abstract description 46
- 239000004519 grease Substances 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H55/088—Profiling with corrections on tip or foot of the teeth, e.g. addendum relief for better approach contact
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
- F16H57/0431—Means for guiding lubricant directly onto a tooth surface or to foot areas of a gear, e.g. by holes or grooves in a tooth flank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0493—Gearings with spur or bevel gears
- F16H57/0495—Gearings with spur or bevel gears with fixed gear ratio
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19991—Lubrication
- Y10T74/19995—Teeth
Definitions
- the invention relates to a transmission with the features of the preamble of claim 1, as it is made GB 1209792 is known.
- Such a device for greasing of gears is for example from the DE 201 21 923 U1 known.
- the there designated as sprocket module lubricating pinion has the outer contour of a conventional gear with involute.
- this known lubricating pinion meshes with a gear wheel to be lubricated
- the head portion of the teeth of the lubricating pinion located radially outside the pitch circle engages in the foot region of the teeth of the toothed wheel which is located radially inside the pitch circle.
- This causes the lubricant to be irregularly and unevenly applied to the gear to be lubricated and accumulate particularly in the area of the tooth root of the gear to be lubricated.
- Object of the present invention is in contrast to provide a lubrication device of the type mentioned, with which an improved distribution of the lubricant is achieved on a gear to be lubricated at the same time as simple as possible construction of the lubrication device.
- the head height is calculated as half of the difference between the outside diameter of the lubricating pinion and the pitch circle diameter of the lubricating pinion.
- the head height refers to the height of the region of each tooth projecting radially outward beyond the pitch circle.
- the head height of the teeth of the external toothing of the lubricating pinion is reduced from about 25% to about 90%, in particular from about 50% to about 80%, from the theoretic profile of the involute toothing.
- the teeth of the external teeth of the lubricating pinion reduced over the theoritician profile of the involute toothing by about 75% Have head height.
- the head height is only about 25% of the theoretical profile in the involute.
- the teeth of the external toothing of the lubricating pinion can have a tooth height that is reduced by about 25% to 50% compared to the theoretical profile of the involute toothing; in particular, the external toothing can have a head height reduced by about 25%.
- the inventively corrected profile with a reduced head height can also be changed in the contour of the external toothing with respect to the theoretical profile of the involute toothing.
- the teeth of the external toothing of the lubricating pinion can have a rounded tooth head contour. This can be done, for example, by a larger radius in the region of the tooth tip, which laterally merges into smaller radii.
- the teeth of the external toothing of the lubricating pinion can have a rounded tooth head contour such that the width of the tooth flanks in the circumferential direction is reduced in a tooth flank section located radially outside the pitch circle relative to the theoretical profile of the involute toothing.
- tooth head contour of the teeth of the external toothing of the lubricating pinion.
- the tooth head contour can also be pointed.
- the lubricating pinion preferably has several from a lubricant supply line outgoing lubricant lines, which opens into at least one lubricant outlet in one of the teeth.
- the lubricant supply line which may be connected via a lubricant pump with a reservoir, is arranged according to a preferred embodiment of the invention in the region of the axis of the lubricating pinion or in an area close to the axis of the lubricating pinion.
- At least one lubricant outlet is provided in each tooth flank of the lubricating pinion.
- the lubricating pinion itself may be at least partially made of metal or at least partially made of plastic. It is also possible that the lubricating pinion and the gear to be lubricated consist of different materials.
- the outlet openings of the lubricating pinion open into the tooth flanks in the region of the pitch circle and / or in an area between the pitch circle and the root circle, the toothed wheel to be lubricated is lubricated at the tribologically highly stressed points.
- the outlet openings in the tooth flanks open into transverse grooves or channels which extend in the axial direction of the lubricating pinion and extend over almost the entire axial width of the tooth flanks. This will achieved a distribution of the lubricant substantially over the entire width of the lubricating pinion and the gear to be lubricated.
- the present invention is not limited to the lubrication of a spur gear designed as a spur gear, but can also be used in bevel gears, helical gears, crown wheels, screws, racks or elliptical gears, which then mesh with the lubricating pinion.
- a lubricating pinion 1 a lubrication device is shown in detail, which has a pitch circle diameter d.
- the lubricating pinion 1 meshes with a likewise only partially shown to be lubricated gear 2, which has an involute toothing.
- a lubricant supply line 4 is formed, from which substantially lubricant lines 5 emanate in the radial direction, which open in the tooth flanks 6 of the teeth 7 of the lubricating pinion 1 in each case a lubricant outlet 8.
- the lubricant outlets 8 are substantially in the range of the pitch circle.
- the tooth head contour of the lubricating pinion 1 is shown in the figures in solid lines.
- the middle tooth of the lubricating pinion 1 in the figures shows, in a broken line, the tooth head contour of the lubricating pinion in the case of a theoretical profile of an involute toothing.
- the tooth head contour and the tooth height in the lubricating pinion 1 is changed from the theoretical profile of an involute toothing.
- the head height hk of the teeth 7 of the lubricating pinion 1 is reduced compared to the theoretical profile of an involute toothing.
- the head height hk is defined as half the difference of the outer diameter dk of the lubricating pinion 1 and the pitch circle diameter d of the lubricating pinion 1.
- the head height of the teeth 7 corresponds to Lubricating pinion 1 only a value of about 0.2 to about 0.7 of the head height in the theoretical profile of an involute.
- the teeth 7 of the lubricating pinion 1 therefore penetrate only much less in the foot region between the teeth of the gear 2 to be lubricated.
- the tooth head contour of the teeth 7 of the lubricating pinion 1 is also changed with respect to a mostly tapered involute toothing into a rounded tooth head contour in the illustrated embodiment. This also causes substantially in the region of the pitch circle on the tooth flanks of the gear 2 to be lubricated is discharged without accumulating in the foot region of the gear 2 to be lubricated.
- the lubricant discharged from the lubricant outlets 8 opens into axial channels 9 or transverse grooves, which in FIG. 3 are shown to distribute the lubricant across the width of the lubricating pinion 1.
- the width of the tooth flanks in the circumferential direction is reduced only in a tooth flank section located radially outside the pitch circle.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
Description
Die Erfindung betrifft ein Getriebe mit den Merkmalen des Oberbegriffs des Anspruchs 1, wie es aus
Eine derartige Einrichtung zum Abschmieren von Zahnrädern ist beispielsweise aus der
Aufgabe der vorliegenden Erfindung ist es demgegenüber, eine Schmiereinrichtung der eingangs genannten Art bereitzustellen, mit welcher eine verbesserte Verteilung des Schmiermittels an einem zu schmierenden Zahnrad bei gleichzeitig möglichst einfachem Aufbau der Schmiereinrichtung erreicht wird.Object of the present invention is in contrast to provide a lubrication device of the type mentioned, with which an improved distribution of the lubricant is achieved on a gear to be lubricated at the same time as simple as possible construction of the lubrication device.
Diese Aufgabe wird erfindungsgemäß durch ein Getriebe mit den Merkmalen nach Anspruch 1 gelöst. Für die verringerte Kopfhöhe wird die bisher vorhandene Zahnspitze abgenommen. Die Kopfhöhe errechnet sich dabei aus der Hälfte der Differenz des Außendurchmessers des Schmierritzels und des Teilkreisdurchmessers des Schmierritzels. Mit anderen Worten bezeichnet die Kopfhöhe die Höhe des über den Teilkreis radial nach außen hervorstehenden Bereichs eines jeden Zahnes.This object is achieved by a transmission with the features of
Bei einer Evolventenverzahnung ist dies in der Regel ein spitz zulaufender Zahnbereich. Wenn nun diese Kopfhöhe gegenüber der Kopfhöhe des theoretischen Profils der Evolventenverzahnung des Schmierritzels verringert wird, dringen die Zähne des Schmierritzels weniger tief in den Fußbereich des zu schmierenden Zahnrads ein. Überraschend hat sich herausgestellt, dass hierdurch eine erheblich bessere Verteilung des Schmiermittels in den tribologisch stärker beanspruchten Bereichen erreicht wird und insbesondere eine ungewollte Ansammlung des Schmiermittels im Fußbereich des zu schmierenden Zahnrads vermieden wird. Gleiches gilt für eine Verringerung der Breite der Zahnflanken in Umfangsrichtung in einem radial außerhalb des Teilkreises gelegenen Zahnflankenabschnitt, wodurch sich ebenfalls vermeiden lässt, dass der Schmierstoff unregelmäßig und ungleichmäßig auf das zu schmierende Zahnrad aufgetragen wird und sich insbesondere im Bereich des Zahnfußes des zu schmierenden Zahnrads ansammelt.With an involute toothing, this is usually a tapered tooth area. If this head height is reduced compared to the head height of the theoretical profile of the involute toothing of the lubricating pinion, the teeth of the lubricating pinion penetrate less deeply into the foot region of the toothed wheel to be lubricated. Surprisingly, it has been found that in this way a significantly better distribution of the lubricant is achieved in the regions subjected to higher tribological stress and, in particular, an undesired accumulation of the lubricant in the foot region of the gear to be lubricated is avoided. The same applies to a reduction in the width of the tooth flanks in the circumferential direction in a tooth flank section located radially outside the pitch circle, which also avoids that the lubricant is applied irregularly and unevenly to the gearwheel to be lubricated and, in particular, in the region of the tooth root of the gearwheel to be lubricated accumulates.
Vorzugsweise ist die Kopfhöhe der Zähne der Außenverzahnung des Schmierritzels gegenüber dem theoritischen Profil des Evolventenverzahnung um etwa 25% bis etwa 90%, insbesondere um etwa 50% bis etwa 80% verringert. Als besonders günstig hat es sich herausgestellt, wenn die Zähne der Außenverzahnung des Schmierritzels eine gegenüber dem theoritischen Profil des Evolventenverzahnung um etwa 75% verringerte Kopfhöhe aufweisen. Mit anderen Worten beträgt die Kopfhöhe nur noch etwa 25% des theoretischen Profils bei der Evolventenverzahnung. Die Verkürzung der Zähne des Schmierritzels erfolgt dabei nur in dem radial außerhalb des Teilkreises liegenden Bereich, da bei einer Verkürzung der Zähne bis auf einen unterhalb des Teilkreises liegenden Wert das Schmierritzel nicht mehr von dem zu schmierenden Zahnrad mitgenommen würde.Preferably, the head height of the teeth of the external toothing of the lubricating pinion is reduced from about 25% to about 90%, in particular from about 50% to about 80%, from the theoretic profile of the involute toothing. To be particularly favorable, it has been found that the teeth of the external teeth of the lubricating pinion reduced over the theoritischen profile of the involute toothing by about 75% Have head height. In other words, the head height is only about 25% of the theoretical profile in the involute. The shortening of the teeth of the lubricating pinion takes place only in the region lying radially outside of the pitch circle, since with a shortening of the teeth to a value lying below the pitch circle value the lubricating pinion would no longer be taken by the gear to be lubricated.
Es ist auch möglich, dass die Zähne der Außenverzahnung des Schmierritzels eine gegenüber dem theoretischen Profil der Evolventenverzahnung um etwa 25% bis 50% verringerte Zahnhöhe aufweisen, insbesondere kann die Außenverzahnung eine um etwa 25% verringerte Kopfhöhe aufweisen.It is also possible for the teeth of the external toothing of the lubricating pinion to have a tooth height that is reduced by about 25% to 50% compared to the theoretical profile of the involute toothing; in particular, the external toothing can have a head height reduced by about 25%.
Das erfindungsgemäß korrigierte Profil mit einer verringerten Kopfhöhe kann auch in der Kontur der Außenverzahnung gegenüber dem theoretischen Profil der Evolventenverzahnung verändert sein. So können die Zähne der Außenverzahnung des Schmierritzels eine abgerundete Zahnkopfkontur aufweisen. Dies kann beispielsweise durch einen größeren Radius im Bereich der Zahnkopfspitze erfolgen, der seitlich jeweils in kleinere Radien übergeht. Die Zähne der Außenverzahnung des Schmierritzels können dabei eine derart abgerundete Zahnkopfkontur aufweisen, dass die Breite der Zahnflanken in Umfangsrichtung in einem radial außerhalb des Teilkreises gelegenen Zahnflankenabschnitt gegenüber dem theoretischen Profil der Evolventenverzahnung verringert ist.The inventively corrected profile with a reduced head height can also be changed in the contour of the external toothing with respect to the theoretical profile of the involute toothing. Thus, the teeth of the external toothing of the lubricating pinion can have a rounded tooth head contour. This can be done, for example, by a larger radius in the region of the tooth tip, which laterally merges into smaller radii. The teeth of the external toothing of the lubricating pinion can have a rounded tooth head contour such that the width of the tooth flanks in the circumferential direction is reduced in a tooth flank section located radially outside the pitch circle relative to the theoretical profile of the involute toothing.
Alternativ hierzu ist es jedoch auch möglich, eine beliebige andere Zahnkopfkontur der Zähne der Außenverzahnung des Schmierritzels vorzusehen. So kann die Zahnkopfkontur auch spitz ausgebildet sein.Alternatively, however, it is also possible to provide any other tooth head contour of the teeth of the external toothing of the lubricating pinion. Thus, the tooth head contour can also be pointed.
Um eine gleichmäßige und gute Versorgung des zu schmierenden Zahnrads mit einem Schmierstoff zu ermöglichen, weist das Schmierritzel vorzugsweise mehrere von einer Schmierstoffzuleitung ausgehende Schmierstoffleitungen auf, die jeweils in wenigstens einen Schmierstoffauslass in einem der Zähne mündet. Die Schmierstoffzufuhrleitung, die über eine Schmierstoffpumpe mit einem Vorratsbehälter verbunden sein kann, ist nach einer bevorzugten Ausführungsform der Erfindung im Bereich der Achse des Schmierritzels oder in einem achsnahen Bereich des Schmierritzels angeordnet.In order to allow a uniform and good supply of lubricant to be lubricated with a lubricant, the lubricating pinion preferably has several from a lubricant supply line outgoing lubricant lines, which opens into at least one lubricant outlet in one of the teeth. The lubricant supply line, which may be connected via a lubricant pump with a reservoir, is arranged according to a preferred embodiment of the invention in the region of the axis of the lubricating pinion or in an area close to the axis of the lubricating pinion.
In Weiterbildung dieses Erfindungsgedankens ist es vorgesehen, dass in jeden Zahn des Schmierritzels wenigstens zwei Schmierstoffauslässe münden. Hierdurch wird erreicht, dass jeder Zahn des zu schmierenden Zahnrads mit Schmierstoff versorgt wird.In a further development of this inventive concept, it is provided that at least two lubricant outlets open into each tooth of the lubricating pinion. This ensures that each tooth of the gear to be lubricated is supplied with lubricant.
Um beide Zahnflanken jedes Zahnes des zu schmierenden Zahnrads mit Schmierstoff zu versorgen, ist nach einer weiteren Ausführungsform der Erfindung in jeder Zahnflanke des Schmierritzels wenigstens ein Schmierstoffauslass vorgesehen.In order to supply lubricant to both tooth flanks of each tooth of the toothed wheel to be lubricated, according to a further embodiment of the invention, at least one lubricant outlet is provided in each tooth flank of the lubricating pinion.
Das Schmierritzel selbst kann zumindest teilweise aus Metall bestehen oder zumindest teilweise aus Kunststoff gefertigt sein. Es ist auch möglich, dass das Schmierritzel und das zu schmierende Zahnrad aus unterschiedlichen Werkstoffen bestehen.The lubricating pinion itself may be at least partially made of metal or at least partially made of plastic. It is also possible that the lubricating pinion and the gear to be lubricated consist of different materials.
Wenn dabei die Auslassöffnungen des Schmierritzels im Bereich des Teilkreises und/oder in einem Bereich zwischen dem Teilkreis und dem Fußkreis in die Zahnflanken münden, wird das zu schmierende Zahnrad an den tribologisch höchst beanspruchten Stellen abgeschmiert.If in this case the outlet openings of the lubricating pinion open into the tooth flanks in the region of the pitch circle and / or in an area between the pitch circle and the root circle, the toothed wheel to be lubricated is lubricated at the tribologically highly stressed points.
Vorzugsweise münden die Auslassöffnungen in den Zahnflanken in Quernuten bzw. Kanäle, welche in axialer Richtung des Schmierritzels verlaufen und sich über fast die gesamte axiale Breite der Zahnflanken erstrecken. Hierdurch wird eine Verteilung des Schmierstoffes im Wesentlichen über die gesamte Breite des Schmierritzels sowie des zu schmierenden Zahnrades erreicht.Preferably, the outlet openings in the tooth flanks open into transverse grooves or channels which extend in the axial direction of the lubricating pinion and extend over almost the entire axial width of the tooth flanks. This will achieved a distribution of the lubricant substantially over the entire width of the lubricating pinion and the gear to be lubricated.
Die vorliegende Erfindung ist dabei nicht auf die Abschmierung eines als Stirnrad ausgebildeten Zahnrads beschränkt, sondern kann auch bei Kegelrädern, Schraubenrädern, Kronrädern, Schnecken, Zahnstangen oder elliptischen Zahnrädern eingesetzt werden, die dann mit dem Schmierritzel kämmen.The present invention is not limited to the lubrication of a spur gear designed as a spur gear, but can also be used in bevel gears, helical gears, crown wheels, screws, racks or elliptical gears, which then mesh with the lubricating pinion.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und unter Bezugnahme auf die Zeichnung näher erläutert. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung.The invention will be explained in more detail using an exemplary embodiment and with reference to the drawing. All described and / or illustrated features alone or in any combination form the subject matter of the invention, regardless of their combination in the claims or their dependency.
Es zeigen schematisch:
- Fig. 1
- ausschnittsweise ein erfindungsgemäßes Schmierritzel, welches mit einem zu schmierenden Zahnrad in Eingriff steht,
- Fig. 2
- das mit dem zu schmierenden Zahnrad in Eingriff stehende Schmierritzel in einer gegenüber
weiter gedrehten Stellung,Figur 1 - Fig. 3
- in Perspektivansicht das Schmierritzel nach
undFigur 1 - Fig. 4
- ausschnittsweise ein erfindungsgemäßes Schmierritzel.
- Fig. 1
- a detail of a lubricating pin according to the invention which is in engagement with a toothed wheel to be lubricated,
- Fig. 2
- the lubrication pinion meshing with the gear to be lubricated in one opposite
FIG. 1 further rotated position, - Fig. 3
- in perspective view the lubrication pinion after
FIG. 1 and - Fig. 4
- a detail of a lubricating pin according to the invention.
In den Figuren ist ausschnittsweise ein Schmierritzel 1 einer Schmiereinrichtung dargestellt, welches einen Teilkreisdurchmesser d aufweist. Das Schmierritzel 1 kämmt mit einem ebenfalls nur ausschnittsweise dargestellten zu schmierenden Zahnrad 2, welches eine Evolventenverzahnung aufweist.In the figures, a lubricating pinion 1 a lubrication device is shown in detail, which has a pitch circle diameter d. The lubricating
Im Bereich der Achse 3 des Schmierritzels 1 ist eine Schmierstoffzufuhrleitung 4 ausgebildet, von welcher im Wesentlichen in radialer Richtung Schmierstoffleitungen 5 ausgehen, welche in den Zahnflanken 6 der Zähne 7 des Schmierritzels 1 in jeweils einen Schmierstoffauslass 8 münden. Wie aus der Darstellung der
Die Zahnkopfkontur des Schmierritzels 1 ist in den Figuren in durchgezogenen Linien dargstellt. Der in den Figuren mittlere Zahn des Schmierritzels 1 zeigt in unterbrochener Linie die Zahnkopfkontur des Schmierritzels bei einem theoretischen Profil einer Evolventenverzahnung. Wie aus dem Vergleich der durchgezogenen Linie und der unterbrochenen Linie ersichtlich ist, ist die Zahnkopfkontur sowie die Zahnhöhe bei dem Schmierritzel 1 gegenüber dem theoretischen Profil einer Evolventenverzahnung verändert.The tooth head contour of the lubricating
So ist die Kopfhöhe hk der Zähne 7 des Schmierritzels 1 gegenüber dem theoretischen Profil einer Evolventenverzahnung verringert. Die Kopfhöhe hk ist dabei als die Hälfte der Differenz des Außendurchmessers dk des Schmierritzels 1 und des Teilkreisdurchmessers d des Schmierritzels 1 definiert. In der dargestellten Ausführungsform entspricht die Kopfhöhe der Zähne 7 des Schmierritzels 1 nur einem Wert von etwa 0,2 bis etwa 0,7 der Kopfhöhe bei dem theoretischen Profil einer Evolventenverzahnung. Die Zähne 7 des Schmierritzels 1 dringen daher nur sehr viel geringer in den Fußbereich zwischen den Zähnen des zu schmierenden Zahnrads 2 ein.Thus, the head height hk of the
Weiter ist auch die Zahnkopfkontur der Zähne 7 des Schmierritzels 1 gegenüber einer meist spitz zulaufenden Evolventenverzahnung in eine in der dargestellten Ausführungsform abgerundete Zahnkopfkontur verändert. Auch dies bewirkt, dass im Wesentlichen im Bereich des Teilkreises an die Zahnflanken des zu schmierenden Zahnrads 2 abgegeben wird, ohne sich im Fußbereich des zu schmierenden Zahnrads 2 anzusammeln. Der aus den Schmierstoffauslässen 8 abgegebene Schmierstoff mündet in axiale Kanäle 9 bzw. Quernuten, die in
Wie insbesondere aus
- 11
- Schmierritzellubrication pinion
- 22
- zu schmierendes ZahnradTo be lubricated gear
- 33
- Achseaxis
- 44
- SchmierstoffzufuhrleitungLubricant supply line
- 55
- Schmierstoffleitunglubricant line
- 66
- Zahnflanketooth flank
- 77
- Zahntooth
- 88th
- Schmierstoffauslasslubricant outlet
- 99
- Kanalchannel
- dd
- TeilkreisdurchmesserPitch diameter
- dkdk
- Außendurchmesserouter diameter
- hkhk
- Kopfhöhehead height
- r1 r 1
- kleinerer Radiussmaller radius
- r2 r 2
- größerer Radiuslarger radius
Claims (12)
- A gear unit with at least one gearwheel (2) or the like, having an involute toothing, and with a lubricating device having at least one lubricating pinion (1) for the application of a lubricant, particularly grease, conveyed for example through a lubricant pipeline by a lubricant pump from a storage tank, to at least one gearwheel (2) or the like, in which case the lubricating pinion (1) has an external toothing with at least one lubricant outlet (8) opening into it, the lubricating pinion (1) of the lubricating device meshing with the at least one gearwheel (2) and the lubricating pinion having an involute toothing, characterized in that the teeth (7) of the external toothing of the lubricating pinion (1) have a tooth flank profile which is shortened relative to the theoretical profile of the involute toothing of the lubricating pinion (1), the addendum (hk) and/or the width of the tooth flanks being reduced in circumferential direction in a portion of the tooth flank located radially outside of the pitch circle so that the teeth of the lubricating pinion (1) penetrate less deeply into the root region of the gearwheel (2) to be lubricated.
- A gear unit according to Claim 1, characterized in that the teeth (7) of the external toothing of the lubricating pinion (1) have an addendum (hk) which is reduced relative to the theoretical profile of the involute toothing of the lubricating pinion (1) by approximately 25% to approximately 90%, and in particular by approximately 50% to approximately 80%.
- A gear unit according to Claim 2, characterized in that the teeth (7) of the external toothing of the lubricating pinion (1) have an addendum (hk) which is reduced relative to the theoretical profile of the involute toothing of the lubricating pinion (1) by approximately 75%.
- A gear unit according to one of Claims 1 to 3, characterized in that the teeth (7) of the external toothing of the lubricating pinion (1) have a rounded contour of the tooth tip and in particular have a rounded contour with three radii (r1, r2).
- A gear unit according to Claim 4, characterized in that the teeth of the external toothing of the lubricating pinion (1) have a rounded contour of the tooth tip with a relatively large radius (r2) in the region at the top of the tooth, which transitions at each side into smaller radii (r1).
- A gear unit according to one of Claims 1 to 4, characterized in that the teeth (7) of the external toothing of the lubricating pinion (1) have a rounded contour of the tooth tip such that, in a tooth flank portion located radially outside of the pitch circle, the width of the tooth flanks in circumferential direction is reduced relative to an involute toothing.
- A gear unit according to one of Claims 1 to 4 and 6, characterized in that the teeth (7) of the external toothing of the lubricating pinion (1) have a pointed contour of the tooth tip.
- A gear unit according to one of Claims 1 to 4 and 6 to 7, characterized in that the lubricating pinion (1) has a plurality of lubricant pipelines (5) proceeding from a lubricant feeder line (4) arranged in its axis (3) or in the vicinity of its axis (3), each pipeline (5) opening into at least one lubricant outlet (8) in one of the teeth (7).
- A gear unit according to one of Claims 1 to 4 and 6 to 8, characterized in that at least two lubricant outlets (8) open into each tooth (7) of the lubricating pinion (1).
- A gear unit according to Claim 9, characterized in that the lubricating outlets (8) are connected by a transverse groove or channel (9), which extends in axial direction of the lubricating pinion (1) particularly over almost the full width of the tooth flanks (6).
- A gear unit according to Claim 9 or 10, characterized in that at least one lubricant outlet (8) opens into each tooth flank (6) and/or transverse groove or channel (9) of the lubricating pinion (1).
- A gear unit according to one of Claims 1 to 4 and 6 to 11, characterized in that at least some of the lubricant outlets (8) open into the tooth flanks (6) of the lubricating pinion (1) in the region of the pitch circle (d) and/or in a region between the pitch circle and the root circle.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202006007831 | 2006-05-16 | ||
DE202006011330U DE202006011330U1 (en) | 2006-05-16 | 2006-07-20 | Lubricating device for applying lubricating grease from a reservoir container to a gearwheel via a pipe from a lubricant pump has a lubricating pinion gear |
PCT/EP2007/003666 WO2007131604A1 (en) | 2006-05-16 | 2007-04-26 | Lubricating device with lubricating pinion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2018495A1 EP2018495A1 (en) | 2009-01-28 |
EP2018495B1 true EP2018495B1 (en) | 2012-08-01 |
Family
ID=37085633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07724596A Active EP2018495B1 (en) | 2006-05-16 | 2007-04-26 | Lubricating device with lubricating pinion |
Country Status (13)
Country | Link |
---|---|
US (1) | US8196489B2 (en) |
EP (1) | EP2018495B1 (en) |
JP (1) | JP5294491B2 (en) |
KR (1) | KR101214242B1 (en) |
AU (1) | AU2007250288B2 (en) |
BR (1) | BRPI0712070A2 (en) |
CA (1) | CA2651650C (en) |
DE (1) | DE202006011330U1 (en) |
DK (1) | DK2018495T3 (en) |
EA (1) | EA014037B1 (en) |
ES (1) | ES2390840T3 (en) |
TW (1) | TWI405926B (en) |
WO (1) | WO2007131604A1 (en) |
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WO2009026620A1 (en) | 2007-08-24 | 2009-03-05 | Fourivers Power Engineering Pty Ltd | Marine power generation apparatus using ocean currents |
KR100945192B1 (en) * | 2009-06-10 | 2010-03-03 | 주식회사 세진아이지비 | A transmission device for converting a torque |
KR100945193B1 (en) * | 2009-06-10 | 2010-03-03 | 주식회사 세진아이지비 | A transmission device for converting a torque |
DE102009036228B4 (en) | 2009-08-05 | 2011-06-30 | Mehnert, Jens, Dr., 08468 | Method and device for the load-oriented lubrication of tribological systems |
DE102010040417A1 (en) * | 2010-09-08 | 2012-03-08 | Aktiebolaget Skf | System for supplying gearwheel with lubricant, has lubricating pinion having base main portion and several equidistantly spaced wetting elements arranged radially in outer region of base main portion along circumferential direction |
WO2012048711A1 (en) * | 2010-10-14 | 2012-04-19 | Vestas Wind Systems A/S | Lubrication pinion |
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DE102011011242B4 (en) * | 2011-02-15 | 2015-04-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Gear body and method for producing a toothed body |
US9033109B2 (en) * | 2012-01-31 | 2015-05-19 | General Electric Company | System and method for lubricating gears in a wind turbine |
KR101375264B1 (en) * | 2012-03-30 | 2014-03-17 | 삼성중공업 주식회사 | Apparatus for supplying lubricant and wind turbine generator having the same |
ES2442451B2 (en) * | 2012-07-10 | 2014-05-23 | Universitat Politècnica De Catalunya | PROCEDURE AND DEVICE TO PREVENT EXCESSIVE WEAR IN GEARS |
CN102913730B (en) * | 2012-10-26 | 2015-04-15 | 深圳市华星光电技术有限公司 | Automatic rack oil filling device |
CN203809218U (en) * | 2013-10-30 | 2014-09-03 | 通用电气公司 | System for lubricating gear |
DE102014210246A1 (en) * | 2014-05-28 | 2015-12-03 | Skf Lubrication Systems Germany Gmbh | Lubricating pinion module, lubricating pinion and method of manufacturing a lubricating pinion module |
DE202014007164U1 (en) * | 2014-06-06 | 2015-09-08 | Liebherr-Components Biberach Gmbh | drive |
DE102016102096A1 (en) | 2016-02-05 | 2017-08-10 | Rolls-Royce Deutschland Ltd & Co Kg | Gear body with a lubricant supply device and jet engine with such a toothed body |
US10598270B2 (en) * | 2016-05-25 | 2020-03-24 | Nabors Drilling Technologies Usa, Inc. | Lubrication system for rack and pinion mast |
DE102016224680A1 (en) | 2016-12-12 | 2018-06-14 | Skf Lubrication Systems Germany Gmbh | Gear lubricant line device |
DE102016224679A1 (en) * | 2016-12-12 | 2018-06-14 | Skf Lubrication Systems Germany Gmbh | Schmiermittelapplikator |
DE102017211308A1 (en) | 2017-07-04 | 2019-01-10 | Aktiebolaget Skf | Lubrication system for a roller chain and conveyor assembly equipped with such a lubrication system |
KR101837715B1 (en) * | 2017-11-13 | 2018-03-13 | (주)유케이오토텍 | Power tranamission device with lubricating oil supply function |
US11105411B2 (en) * | 2018-02-28 | 2021-08-31 | Sikorsky Aircraft Corporation | Secondary lubrication for gears and gearboxes |
CN110332299A (en) * | 2019-05-08 | 2019-10-15 | 杭州九钻机械有限公司 | A kind of low abrasion low-noise chainwheel |
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FR3143706A1 (en) * | 2022-12-19 | 2024-06-21 | Valeo Embrayages | Pinion carrier shaft, gearbox and electric machine |
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-
2006
- 2006-07-20 DE DE202006011330U patent/DE202006011330U1/en not_active Expired - Lifetime
-
2007
- 2007-04-26 ES ES07724596T patent/ES2390840T3/en active Active
- 2007-04-26 WO PCT/EP2007/003666 patent/WO2007131604A1/en active Application Filing
- 2007-04-26 KR KR1020087030588A patent/KR101214242B1/en not_active IP Right Cessation
- 2007-04-26 AU AU2007250288A patent/AU2007250288B2/en not_active Ceased
- 2007-04-26 BR BRPI0712070-2A patent/BRPI0712070A2/en not_active IP Right Cessation
- 2007-04-26 EP EP07724596A patent/EP2018495B1/en active Active
- 2007-04-26 JP JP2009510309A patent/JP5294491B2/en not_active Expired - Fee Related
- 2007-04-26 DK DK07724596.7T patent/DK2018495T3/en active
- 2007-04-26 EA EA200802325A patent/EA014037B1/en not_active IP Right Cessation
- 2007-04-26 CA CA2651650A patent/CA2651650C/en not_active Expired - Fee Related
- 2007-04-26 US US12/300,842 patent/US8196489B2/en active Active
- 2007-04-27 TW TW096114896A patent/TWI405926B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR20090018642A (en) | 2009-02-20 |
US20100000358A1 (en) | 2010-01-07 |
AU2007250288B2 (en) | 2011-09-01 |
TW200813362A (en) | 2008-03-16 |
WO2007131604A1 (en) | 2007-11-22 |
BRPI0712070A2 (en) | 2012-07-24 |
KR101214242B1 (en) | 2012-12-20 |
DK2018495T3 (en) | 2012-10-29 |
JP2009537749A (en) | 2009-10-29 |
EP2018495A1 (en) | 2009-01-28 |
JP5294491B2 (en) | 2013-09-18 |
AU2007250288A1 (en) | 2007-11-22 |
DE202006011330U1 (en) | 2006-09-28 |
EA200802325A1 (en) | 2009-06-30 |
CA2651650C (en) | 2013-06-11 |
US8196489B2 (en) | 2012-06-12 |
EA014037B1 (en) | 2010-08-30 |
TWI405926B (en) | 2013-08-21 |
ES2390840T3 (en) | 2012-11-16 |
CA2651650A1 (en) | 2007-11-22 |
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